Yup, you take these prickly husks, mount them on some sort od drum apparatus, and then use that to "tease" the wool. Hence the name. They are native to Europe, not North America, so there is an element of unfairness in your not seeing them flower .
Thanks Zachwass2000. Maybe Mandelbrot had a bunch of them in his back yard .
On a slightly less mathematical front, here we have a butterfly that has landed on a Bull Thistle:
The butterfly is obviously quite impressed with itself, as it is merrily sticking up its antenna.
Two dark red lilies against a sea of Marygolds:
To blur the background of Marygolds I uses a large aperture. That meant I had to make sure that the line connecting the two lilies was parallel to the camera so that they were both sharp. I used manual focussing, as otherwise chances are good the camera wants to focus on the Marygolds.
Her is the single-lily version of the above:
According to a book I read the thing to focus on in a flower is the stamina, so that's what I did.